pub type PU3_W<'a, const O: u8> = BitWriter<'a, u32, PUCRH_SPEC, PU3_A, O>;
Field PU3 writer - pull-up
PU3
Disable pull-up on PH[y] when both APC bits are set in PWR control register 3 (PWR_CR3)
Enable pull-up on PH[y] when both APC bits are set in PWR control register 3 (PWR_CR3). The pull-up is not activated if the corresponding PH[y] bit is also set